Alcohol is a factor in a third of crimes in Porirua and nationwide.
Off-licences supply 70 per cent of the booze that leads to crime.
Half of all serious violence and antisocial crimes involve alcohol.
A third of family violence crimes are fuelled by alcohol.
A quarter of property crimes (such as burglary) involve alcohol.
Alcohol has a social cost of $4.4 billion to New Zealand, 68 per cent of the total social cost of crime.
Source: Porirua police